Might have something to contribute here...
Pre-Swisschamp...
I have had a SAK (or similar multibladed knife) in my "kit" since I was a teenager, starting with a GI four blade (1983-1988?). I then seen an Olive Drab "Mauser" Commemorative model at a gun shop and bought it and it then became my main SAK-type knife (1988-1990?). With the first two knives, I knew they served multiple roles, but I didn't consider myself a hardcore SAK "nut" then.
After that, I caught the "multitool" bug, and bought and carried a Leatherman tool from about 91(?) or so, and sorta started feeling that the Leatherman-style tools had "obsoleted" the old SAK style knives.
Sometime around 1994 or 1995 (?) I read an article where numerous military and civilian survival instructors and special forces soldiers voted for their favorite "if I could only have one" survival knife. I KNEW it would NOT be a "RAMBO" knife but I was shocked that "some form of Swiss army knife" won out over all the other customs and factory knives. That jarred my thinking on the subject form that day on.
At about the same time, a buddy picked up a Swisschamp, and handling it and watching him use it on a couple of overnight trips put the hook in me.
Swisschamp...
My wife (who was then my fiance') bought me a Swisschamp (we'll call it "Swisschamp #1") for my birthday in 1996, and it rated right up there at the top of the "coolest gift I had ever received" chart. I used the knife for ALL KINDS of tasks, in the house, in the garage, in the woods, in the car, and at work (as a deputy sheriff.)
I found that often, the BLADES were the tools I used least, since I have always ran a dedicated "one-hand opening pocket knife" as my first line user, if I was not wearing a fixed blade (like when hiking or camping). With all my SAKs, I have always spared the SMALL BLADE and considered it a "scalpel" for first aid or medical use. For that use I keep it unused, clean, and razor sharp. The LARGE BLADE's use is evident, self-explanitory, and unlimited.
I was shocked to find that I used the SCISSORS and the INK PEN probably more than any other tools! I read an article by Leroy Thompson once where he mentioned how often he used the scissors, clipping coupons, newspaper articles, magazine articles, etc, mentioning that he spent alot of time on airplanes (how times have changed!) Although small, I was amazed at the quality of the scissors.
The INK PEN was always there, when I could find no other writing implement in my vehicle. It isn't something I'd want to write A LOT with, but I have filled out countless deposit slips at the bank, notes to leave on cars or doors of friends or family, made shopping lists on the fly, etc. Of course this isn't life or death "survival" on a desert island, and I won't dare act like some of the urban wussies where this MIGHT be made to be life or death (the "I can't live without my Blackberry!" types...) These thing however make a small problem a NON-issue, and makes day to day life a little smoother.
I used the STRAIGHT PIN a lot also, as a toothpick (that was one item-the provided PLASTIC TOOTHPICK-that I wasn't that happy with...never worked that good for me), a pin to pick splinters, etc.
***TIP-make a bend, ever so slight in the INK PEN and STRAIGHT PIN to keep them secure in the handle.
At least three times, I've got cars going with the SAK-everytime involving battery terminals and cables. Using the PLIERS to loosen the nuts, and the FILE or SAW to "clean" corrosion away and make good contact surfaces.
The MINI SCREWDRIVER has been used for glasses many times.
Of course I have countless uses of the CAN OPENER and SCREWDRIVERS. The STRAIGHT EDGE SCREWDRIVER was used a lot when I was a city officer and worked a lot of traffic and ended up seizing a lot of registration plates.
As an aside, I have been in law enforcement for nearly 23 years, and I've never had to "cut down" a hanging victim (although I've seen a few hanging deaths). Also, I've never had to cut a wreck victim free (the ONE time I had a person still trapped in a car by the seatbelt alone, I was able to hit the release button...DUH!) I'm just saying this is MY EXPERIENCE, although every rookie and many non-LEOs think this is a weekly or monthly thing. If it helps you get permission to carry another knife or style of knife, then GO FOR IT, but it just don't happen much. Also, if you are using your own pocket knife to "scrape blood evidence" (another use I often hear cited to "justify" carrying a knife) then you are a fool, from a biohazard standpoint.
My beloved companion (Swisschamp #1) that I had for ten years was burned/ruined in a car fire when my Crown Victoria caught fire and burned in 2006. : (
I replaced it two months later with a brand new Swisschamp (Swisschamp #2) but it isn't the same one that was purchased by my wife for my birthday... : (
It is still used and carried in my "war bag" both on duty or off duty.